Pad++: A zooming user interface

This video demonstrates Pad++, a zooming user unterface (ZUI) designed for interactive graphical data creation and browsing. It takes the spatial metaphor standard from the computer window desktop interface one step further by incorporating the concept of scale. Pad++ is a two-dimensional surface that acts like a sketchpad, but is orders of magnitude larger in extent and resolution. This allows information to be created not only at any location, but at any size as well.